Abstract

Superoxide dismutase EC 1.15.1.1 (SOD) is a metulluenzyme which catalyzes the disproportionation of superoxide radicals (O2) to moleculur oxygen and H2O2. Superoxide dismutases have been discovered by Joe Mccord und Irwin Fridovich in 1968;SOD have been found in almost aerobic und unuerobic bacteriu, funji, prokaryotic und eukaryotic algue, plants and vertebrates. SOD plays an important role in protecting cells aguinst oxygen toxicity. Three types of SOD have been found und they are distinguished by different metals in their catalytic center. Superoxide dismutuse und superoxide radical have relations with various human diseases.